Casio PX-S1100

The Casio Privia PX-S1100 is one of the slimmest and most portable 88-key digital pianos you can buy, yet it delivers a playing experience that punches well above its price point. As the successor to the popular PX-S1000, it refines the formula with improved piano tones, Bluetooth connectivity, and the same remarkably compact form factor that made its predecessor a bestseller.

Sound Engine

The PX-S1100 is powered by Casio's Multi-Dimensional Morphing AiR sound source, which smoothly transitions between dynamic layers as you play harder or softer — no abrupt sample switches. The default grand piano tone is noticeably improved over the PX-S1000, with richer resonance and more natural decay. There are 18 built-in tones including electric pianos, organs, strings, and bass, with layer and split modes for combining two sounds. The built-in dual 8W speakers (16W total) deliver surprisingly full sound for such a slim body, though you will want headphones or external monitors for serious practice or performance.

Keyboard and Feel

The Smart Scaled Hammer Action keyboard uses a graded weighting system — heavier in the bass, lighter in the treble — that closely mimics an acoustic piano. Keys feature a simulated ebony and ivory texture for a natural feel and better grip. Six levels of touch sensitivity let you adjust the keyboard response to your playing style. The touch-sensitive control strip along the front panel replaces physical buttons for a clean, minimalist look, though some players find it less intuitive than traditional buttons.

Portability and Connectivity

At just 23.2 cm deep and weighing 11.2 kg, the PX-S1100 is remarkably portable for a full-size piano. It can run on 6 AA batteries for playing anywhere. Bluetooth MIDI connectivity (via included WU-BT10 adapter) lets you wirelessly connect to the Casio Music Space app and other music apps. A USB Type-C port handles both MIDI and audio recording, and you can record performances directly to a USB drive. The headphone output supports two sets of headphones simultaneously for duet practice.

Who Is This For?

• Beginners and students who want an authentic piano feel without a bulky instrument
• Apartment dwellers who need a compact, quiet practice instrument
• Gigging musicians who need a portable 88-key board for live performance
• Piano teachers who can use duet mode for side-by-side instruction
• Travelling musicians who want battery-powered portability with real weighted keys

The PX-S1100 is the best entry-level weighted keyboard for anyone who values portability without wanting to sacrifice piano feel. For more sounds and features, step up to the PX-S3100 or PX-S5000.